another update - at 1/2 step - the discrete resolution should be about 40,000 divisions per rotation. .009 deg.
https://www.youtube.com/watch?v=IdfKre6zpEY On Thu, Feb 4, 2021 at 4:00 PM Sam Sokolik <[email protected]> wrote: > https://www.youtube.com/watch?v=ZVVffljc7kE > > On Tue, Feb 2, 2021 at 9:46 AM Gene Heskett <[email protected]> wrote: > >> On Tuesday 02 February 2021 08:30:56 Sam Sokolik wrote: >> >> > I have looked at cycloidal drives and feel that they have too many >> > parts :) >> > >> > Gene >> > https://www.youtube.com/watch?v=Gx263nnTrqY >> > >> > Ran for over 6 hours like that - about 850rpm input. >> > >> I am highly impressed. >> >> Now finish the housing, and hang a load on it, like the worm of a BS-1 >> while making another worm to replace the crappy worm in the Chinese >> BS-1. That worm is doomed to a higher wear rate, a fact I'm becoming >> aware of as I exercise this BS-1 servo for tuning. >> >> That is why I bought the ender3, but I was using O.P's code which was >> crappy code IMO. Turns out the ender3 can make stuff a heck of a lot >> better that the code I could DL from thingiverse. I now have the >> extruder motor on the x carriage, moving a modified stock hot end, and >> while its slower than some because the heating is only once the filament >> is in the nozzle, dozens of times more dependable than the stock setup. >> No clogging from cold filament because the hot stuff backs up into the >> heat sink and freezes. >> >> I think this loose ring idea has the most promise of making a long >> lasting drive, and shorter axially than any design so far. Please >> continue. >> >> Thank you Sam S. >> >> > On Thu, Jan 28, 2021 at 3:13 AM andrew beck <[email protected]> >> > >> > wrote: >> > > Guys just to chime in here. >> > > >> > > Sam went don't you design a cycloidal drive instead. They are easy >> > > to make on a normal 3 axis Cnc mill with a end mill and much more >> > > rigid than a harmonic drive. As they are not so fragile. I'm >> > > planning on making some on my VMC soon. I don't understand why >> > > use a harmonic drive. (I actually have a big harmonic drive here >> > > from a robot. ) >> > > >> > > On Thu, 28 Jan 2021, 18:53 Bari, <[email protected]> wrote: >> > > > On 1/27/21 10:55 AM, Sam Sokolik wrote: >> > > > > Nice being able to make things while I sleep.. >> > > > > >> > > > > 2 outside side rings - one 202 teeth - one 200 teeth. >> > > > > Inside flex ring - 200 teeth. Feels good - for what it is.. >> > > > > >> > > > > http://electronicsam.com/images/greenmachine/IMG_20210127_104237 >> > > > >.jpg >> > > > > http://electronicsam.com/images/greenmachine/IMG_20210127_104628 >> > > > >.jpg >> > > > > http://electronicsam.com/images/greenmachine/IMG_20210127_104354 >> > > > >.jpg >> > > > >> > > > Timing belts will take the flex >> > > > >> > > > https://www.youtube.com/watch?v=Y8ZELQdgBbU >> > > > >> > > > https://www.youtube.com/watch?v=2YC-0C8oPUo >> > > > >> > > > >> > > > Cycloid prototype under microscope >> > > > >> > > > https://www.youtube.com/watch?v=um5GMOBgz6s >> > > > >> > > > >> > > > Hybrid planetary/harmonic drive - check out how they made it flex >> > > > >> > > > https://www.youtube.com/watch?v=sdRGrTHq4hA >> > > > >> > > > >> > > > >> > > > _______________________________________________ >> > > > Emc-users mailing list >> > > > [email protected] >> > > > https://lists.sourceforge.net/lists/listinfo/emc-users >> > > >> > > _______________________________________________ >> > > Emc-users mailing list >> > > [email protected] >> > > https://lists.sourceforge.net/lists/listinfo/emc-users >> > >> > _______________________________________________ >> > Emc-users mailing list >> > [email protected] >> > https://lists.sourceforge.net/lists/listinfo/emc-users >> >> >> Cheers, Gene Heskett >> -- >> "There are four boxes to be used in defense of liberty: >> soap, ballot, jury, and ammo. Please use in that order." >> -Ed Howdershelt (Author) >> If we desire respect for the law, we must first make the law respectable. >> - Louis D. Brandeis >> Genes Web page <http://geneslinuxbox.net:6309/gene> >> >> >> _______________________________________________ >> Emc-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
